1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/**
* Tests that arbiters cannot be used to acknowledge w:number writes even when some of the
* required secondaries are unavailable. After a write commits, the corresponding
* lastCommittedOpTime becomes the lastAppliedOpTime on arbiters in the set. This particular test
* uses a PSSAA set where both of the secondaries are non-voting, which makes the majority only one
* node. The effect of this configuration is that writes only need to be on the primary to commit.
* A w:2 write would thus require only one additional member to fully satisfy the write concern
* after committing. This test therefore shuts down the both secondaries and verifies that neither
* of the arbiters gets picked in its place and the w:2 write times out instead.
*/
(function() {
"use strict";
const name = "arbiters_not_included_in_w2_wc";
const rst = new ReplSetTest({name: name, nodes: 5});
const nodes = rst.nodeList();
rst.startSet();
rst.initiate({
"_id": name,
"members": [
{"_id": 0, "host": nodes[0]},
{"_id": 1, "host": nodes[1], priority: 0, votes: 0},
{"_id": 2, "host": nodes[2], priority: 0, votes: 0},
{"_id": 3, "host": nodes[3], "arbiterOnly": true},
{"_id": 4, "host": nodes[4], "arbiterOnly": true}
]
});
const dbName = "test";
const collName = name;
const primary = rst.getPrimary();
const testDB = primary.getDB(dbName);
const testColl = testDB.getCollection(collName);
assert.commandWorked(
testColl.insert({"a": 1}, {writeConcern: {w: 2, wtimeout: ReplSetTest.kDefaultTimeoutMS}}));
jsTestLog("Shutting down both secondaries");
rst.stop(1);
rst.stop(2);
jsTestLog("Issuing a w:2 write and confirming that it times out");
assert.commandFailedWithCode(testColl.insert({"b": 2}, {writeConcern: {w: 2, wtimeout: 5 * 1000}}),
ErrorCodes.WriteConcernFailed);
rst.stopSet();
})();
|
